A Mississippi sheriff says one of the ex-prisoners who received a pardon last year from the state’s then-governor was involved in exchange of gunfire that killed another man.

Calhoun County Sheriff Greg Pollan said Wayne Thurman Harris of Slate Springs and Chris McGonagill of Calhoun City got into an argument at a cookout and both of them fired guns. Both were wounded, McGonagill fatally.

Pollan said no charges have been filed because he has not had a chance to interview Harris.

Harris received a full and unconditional pardon from Barbour on Jan. 10, 2012, after serving a sentence for selling marijuana.